The most important commercial process for generating hydrogen gas is the water-gas shift reaction: CH4(g) + H2O(g) → CO(g) + 3H2(g)
a) Use tabulated thermodynamic data to find ΔG° for this reaction at the standard temperature of 25°C.
b) Now calculate ΔG°1100 for this process when it occurs at 1100 K.
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Hello,
I was wondering what are other methods to perform a limonene
extractions from orange peels and mint leaves rather than the steam
and soxhlet extractions? thank you
In: Chemistry
1.) For the chemical reaction 2 Al + 3 H 2 SO 4 ⟶ 3 H 2 + Al 2 ( SO 4 ) 3 what mass of hydrogen is produced from 1.97 mol of aluminum?
2.) Convert 1.77×1024 atoms of carbon to moles of carbon.
1.77×1024 atoms=
3.) For the reaction
2KI+Pb(NO3)2⟶PbI2+2KNO3how many grams of lead(II) iodide, PbI2, are produced from 89.7 g of potassium iodide, KI?
4.)For the reaction
2NaOH+H2SO4⟶Na2SO4+2H2O
how many grams of sulfuric acid, H2SO4, are needed to react completely with 33.1 g of sodium hydroxide, NaOH?
PLEASE HELP...I WOULD GREATLY APPRECIATE IT...
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Explain in detail the experimental procedure you would use to find heat of solution when sodium chloride is dissolved into water. (Answer in detail.)
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a) Definition of terms.Please briefly give the meaning of each of the following terms:
1. colligative property 2. vapor pressure 3. semi-permeable membrane 4. osmosis 5. dialysis
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A compound, XF4, is 52.44% X by mass. What is the molecular geometry of XF4?
A) tetrahedral B) square planar C) square pyramidal D) see-saw E) none of the above
Please explain to me why the answer is square planar. What needs to be calculate in order to do this problem?
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How to calculate unreacted concentration of A at 2hr when rate = k[A]1[B]1 (first order both A and B) and rate = k[A]0[B]0 (zero order both A and B) ?
A + B --> C, 1hr: A 75% reacted
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The total of all carbonate species in lake water is 0.001 M, and the lake pH is 8.
Calculate the concentration of each of the individual carbonate species.
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Explain in detail the experimental procedure you would use for determining the concentration of acetic acid in an aged wine sample. ( Answer in detail)
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If the pH of a 2.54-cm rainfall over 3700 km2 is 3.20, how many kilograms of sulfuric acid, H2SO4, are present, assuming that it is the only acid contributing to the pH? For sulfuric acid, Ka1 is very large and Ka2 is 0.012.
Express your answer to two significant figures and include the appropriate units.
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Consider the evaporation of methanol at 25.0 ?C :
CH3OH(l)?CH3OH(g) .
Why methanol spontaneously evaporates in open air at 25.0 ?C : Methanol evaporates at room temperature because there is an equilibrium between the liquid and the gas phases. The vapor pressure is moderate (143 mmHg at 25.0 degrees centigrade), so a moderate amount of methanol can remain in the gas phase, which is consistent with the free energy values.
A.) Find ?G? at 25.0 ?C .
B.) Find ?G at 25.0 ?C under the following nonstandard
conditions:
(i)PCH3OH= 158.0mmHg
C). Find ?G at 25.0 ?C under the following nonstandard
conditions:
(ii) PCH3OH= 110.0mmHg
D.) Find ?G at 25.0 ?C under the following nonstandard
conditions:
(iii) PCH3OH= 11.0mmHg
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The density of balsa wood is 18.9 pounds per cubic ft. What is the weight, in kg, of a piece of balsa wood 2.0 inches by 4.0 inches by 10.0 inches?
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Revised Question: How can I obtain molarities of the final solutions with this information that I was told to record in Chem 1 Lab? It asks for a molarity of the final solution for EACH part. As in, does (AI) has its own molarity of the solution and (A2) has its own molarity if the final solution or does A1 and A2 have the same molarity of the solution? Same thing for Bl and B2.
Part: AI.
Mass of Cu(CH3COO)2•H2O: 2.495 g
Moles of Cu(CH3COO)2•H2O: 199.654 g/mol
Molarity of final solution: ???
A2.
Volume of Solution AI used: 10 mL
Molarity of final solution: ???
( I got 1.2 M from the data of Al and A2 but is that the molarity of the final solution for both Al and A2?)
*NOTE: My professor did not have us collect the direct data for a volume for Part A1. It was not in our procedures or table. But if it helps once we weighted the mass of Cu(CH3COO)2•H2O = 2.495 g, we then added 25 mL of distilled water to the 50 mL beaker to dissolve it. This is why I got confused when first calculating part A1.
Part:BI.
Molarity of stock KMnO4: 0.02011 M
Volume of stock: 20 mL
Molarity of final solution: ???
B2.
Volume of solution BI used: 10mL
Molarity of final solution: ???
(I got 0.04022 M for the molarity of the final solution from both sets of data but is that the molarity for Bl and B2?)
Part: CI.
Molarity of stock K2CrO4: 1.25 x 10^-3 M
Volume of stock solution used (V1): 7 mL
Volume of stock solution used (V2): 10 mL
Molarity of final solution: ???
( I got the molarity of the final solution = 8.75 x 10^-4 M)
A1 volume=25ml
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In the determination of the solubility for copper (II) iodate, what common ion of the same concentration (for example, 0.010 M Cu2+ or 0.010 M IO3-) would have a greater effect on reducing the solubility of Cu(IO3)2? Why?
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